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Pre 84 Trucks 1st gen pickups

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Old 09-29-2012, 03:31 PM   #1
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EACV Help

Howdy All - I'm going through a smog checklist in an attempt to get my 83 4x4 pickup on the road again.

I can not get the EACV to operate like i think it should. In essense it seems like a pretty simple device -->air comes from the smog pump and goes out one of two ways. 1 - to the exhaust manifold, 2 - to the air intake. Problem is I can't seem to get mine to switch to the exhaust manifold even when i apply current directly to it!
Click the image to open in full size.
I have been looking everywhere for a replacement EACV but nobody sells them! Even at the junkyards they seem to go before anything else. So 3 questions:

1. What are the proper test procedures for the EACV
2. Where can i get a new one?
3. Will something from another vehicle work? If so which vehicle.

Thanks!
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Old 09-30-2012, 09:59 PM   #2
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Quote:
Originally Posted by estysalinas View Post
1. What are the proper test procedures for the EACV
I would say look at the FSM. It might show the procedure for testing it.


Quote:
Originally Posted by estysalinas View Post
2. Where can i get a new one?
"New"?

It's not made anymore.

http://www.toyotapartseast.com/Page_...2133,2134,2135



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Originally Posted by estysalinas View Post
3. Will something from another vehicle work? If so which vehicle.
Here's a list of the different vehicles that use that same part number according to Toyota Parts Zone.

http://www.toyotapartszone.com/Page_...er=25720-35010
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Old 10-01-2012, 08:52 PM   #3
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Thanks for the info
- I have the 85FSM which doesn't have the EACV test procedures, will hunt for an 84
- not "new" new, but remanufactured (maybe napa?) new
- I have the list, was thinking if there is a odd ford or Chevy part that some how by a miracle would work....I'm guessing not at this point.
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Old 10-04-2012, 07:15 PM   #4
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Quote:
Originally Posted by estysalinas View Post
not "new" new, but remanufactured (maybe napa?) new
I would say take the part number and call them or go down and see if they can cross-reference the number to something available.



Quote:
Originally Posted by estysalinas View Post
I have the list, was thinking if there is a odd ford or Chevy part that some how by a miracle would work....I'm guessing not at this point.
I would say no as well. Since this is a Aisin part, I can't say for sure how many USA made vehicles were using Japanese components of the early 80s at the same time.
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1995 Isuzu Trooper LS

1991 Mazda B2600i 2WD Cab Plus
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Old 10-04-2012, 07:15 PM
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22r, 25720, 2572035010, 83, 87, aisin2572035010, eacv, emissions, operation, pickup, switching, testing, toyota, toyotaeacv, work

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